Heat a pot of water until boiling and cook Rotini pasta until al dente, strain, and set aside.
Heat 2 inches of water in a saucepan until boiling and add your broccoli florets. Put a lid on top and steam for 3-5 minutes just until tender.
Preheat oven to 375 degrees
In a 12-inch oven-safe skillet (see notes) on medium-high heat and add the butter and garlic and whisk until melted.
Sprinkle in the flour, whisk, and cook for 1-2 minutes.
Slowly pour in the half and half and whisk until smooth. Add in the cream cheese, parmesan cheese, garlic powder, salt and pepper. Simmer on low until thickened.
Remove from heat and add in the cooked pasta, broccoli, and chicken and toss to combine.
Stir in 1 cup of mozzarella cheese. Sprinkle the remaining mozzarella cheese on top.
Bake for 18-20 minutes or until hot and bubbly.
Video
Notes
No oven-safe skillet? Then pour everything into a 9x13 baking dish sprayed with non stick cooking spray.Feel free to use other kinds of pasta like penne, ziti, spaghetti, and more.Add other vegetables like spinach, mushrooms, peas, zucchini, or bell peppers.